ISO 19702:2015

Foreword

Introduction

1 Scope

2 Normative references

3 Terms and definitions

4 Principles

5 Sampling

5.1 General

5.2 Temperature of the sampling system

5.3 Filter systems

5.4 Sampling probes

5.4.1 General

5.4.2 Single hole probes

5.4.3 Multi hole probes

5.4.4 Probe positioning

5.5 Sampling line

5.6 Pump selection, position, and flow rate

5.7 Response time of the sampling system

5.8 Optical cell

6 The FTIR spectrophotometer

6.1 Spectrophotometer environment

6.2 Detector

6.3 IR-source

6.4 Mirror alignment and cleanliness

6.5 Spectrophotometer compartment

6.6 Spectral range limits

6.7 Resolution

7 Calibration

7.1 Background noise

7.2 Limits of detection and of quantification (LD and LQ)

7.3 Calibration methods

7.4 Acquiring and collecting calibration standards

8 Measurement procedure

8.1 General

8.2 Daily checks and controls

8.2.1 General

8.2.2 Control of calibration method

8.2.3 Spectrophotometer sensitivity measurements

8.2.4 Sampling system tests

8.2.5 Control of the sampling flow rate

8.3 Preparation for sampling and analysis

8.4 Initial procedures immediately before a test

8.5 Procedures during sampling from a test

8.6 Procedures after a test

8.7 Data reduction

9 Test report

10 Precision and accuracy

10.1 General

10.2 LD and LQ

10.3 Repeatability and reproducibility

Annex A (informative) FTIR theory

Annex B (informative) FTIR sampling systems

Annex C (informative) Analysis of filter(s), the sampling line and probe for effluent retention

Annex D (normative) Response time determination of the complete FTIR sampling system

Annex E (informative) Considerations for FTIR optical cell selection

Annex F (normative) Verification of FTIR optical cell performance

Annex G (informative) Spectrophotometer

Annex H (normative) Verification of spectrometer performance

Annex I (informative) Reference gases

Annex J (informative) Calibration methods

Annex K (informative) Recording reference spectra and building a calibration set

Annex L (informative) Repeatability and reproducibility

Annex M (informative) Examples of equipment and parameters

Bibliography